Home / 21,390.02-32,055.87-13,072.94

Finding the Fourth Proportional to 21,390.02, 32,055.87 and 13,072.94

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Solution

The fourth proportional to 21,390.02, 32,055.87 and 13,072.94 is: 19,591.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.02 : 32,055.87 = 13,072.94 : x
  2. Step 2: Convert to fraction form
    21,390.02/32,055.87 = 13,072.94/x
  3. Step 3: Cross multiply
    21,390.02x = 32,055.87 × 13,072.94
  4. Step 4: Simplify right side
    21,390.02x = 419,064,465.16
  5. Step 5: Solve for x
    x = 419,064,465.16/21,390.02
  6. Step 6: Final answer
    x = 19,591.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.